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  <title>Fetch the next row of a result set as an associative, a numeric array, or both</title>
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    <li>Fetch the next row of a result set as an associative, a numeric array, or both</li>
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  <div id="layout-content"><div id="mysqli-result.fetch-array" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysqli_result::fetch_array</h1>
  <h1 class="refname">mysqli_fetch_array</h1>
  <p class="verinfo">(PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">mysqli_result::fetch_array</span> -- <span class="refname">mysqli_fetch_array</span> &mdash; <span class="dc-title">Fetch the next row of a result set as an associative, a numeric array, or both</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysqli-result.fetch-array-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>mysqli_result::fetch_array</strong></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code><span class="initializer"> = <strong><code>MYSQLI_BOTH</code></strong></span></span>): <span class="type"><span class="type">array</span>|<span class="type">null</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">过程化风格</p>
  <div class="methodsynopsis dc-description"><span class="methodname"><strong>mysqli_fetch_array</strong></span>(<span class="methodparam"><span class="type"><a href="class.mysqli-result.html" class="type mysqli_result">mysqli_result</a></span> <code class="parameter">$result</code></span>, <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code><span class="initializer"> = <strong><code>MYSQLI_BOTH</code></strong></span></span>): <span class="type"><span class="type">array</span>|<span class="type">null</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">
   Fetches one row of data from the result set and returns it as an array.
   Each subsequent call to this function will return the next row within the
   result set, or <strong><code>null</code></strong> if there are no more rows.
  </p>
  <p class="para">
   In addition to storing the data in the numeric indices of the result array, 
   this function can also store the data in associative indices 
   by using the field names of the result set as keys.
  </p>
  <p class="para">
   If two or more columns of the result have the same name, the last
   column will take precedence and overwrite any previous data. To
   access multiple columns with the same name, the numerically indexed
   version of the row must be used.
  </p>
  <blockquote class="note"><p><strong class="note">注意</strong>: <span class="simpara">此函数返回的字段名<em class="emphasis">大小写敏感</em>。</span></p></blockquote>
  <blockquote class="note"><p><strong class="note">注意</strong>: <span class="simpara">此函数将 NULL 字段设置为 PHP <strong><code>null</code></strong> 值。</span></p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-mysqli-result.fetch-array-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    <dt>

<code class="parameter">result</code></dt>
<dd>
<p class="para">仅以过程化样式：由
<span class="function"><a href="mysqli.query.html" class="function">mysqli_query()</a></span>、<span class="function"><a href="mysqli.store-result.html" class="function">mysqli_store_result()</a></span>、
<span class="function"><a href="mysqli.use-result.html" class="function">mysqli_use_result()</a></span>、<span class="function"><a href="mysqli-stmt.get-result.html" class="function">mysqli_stmt_get_result()</a></span> 返回的 <span class="classname"><a href="class.mysqli-result.html" class="classname">mysqli_result</a></span> 对象。</p></dd>

    
     <dt>
<code class="parameter">mode</code></dt>

     <dd>

      <p class="para">
       This optional parameter is a constant indicating what type of array
       should be produced from the current row data. The possible values for
       this parameter are the constants <strong><code>MYSQLI_ASSOC</code></strong>,
       <strong><code>MYSQLI_NUM</code></strong>, or <strong><code>MYSQLI_BOTH</code></strong>.
      </p>
      <p class="para">
       By using the <strong><code>MYSQLI_ASSOC</code></strong> constant this function
       will behave identically to the <span class="function"><a href="mysqli-result.fetch-assoc.html" class="function">mysqli_fetch_assoc()</a></span>,
       while <strong><code>MYSQLI_NUM</code></strong> will behave identically to the
       <span class="function"><a href="mysqli-result.fetch-row.html" class="function">mysqli_fetch_row()</a></span> function. The final option 
       <strong><code>MYSQLI_BOTH</code></strong> will create a single array with the
       attributes of both.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysqli-result.fetch-array-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an array representing the fetched row, <strong><code>null</code></strong> if there
   are no more rows in the result set,  或者在失败时返回 <strong><code>false</code></strong>.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-mysqli-result.fetch-array-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1521">
   <p><strong>示例 #1 <span class="methodname"><strong>mysqli_result::fetch_array()</strong></span> example</strong></p>
   <div class="example-contents"><p>面向对象风格</p></div>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />mysqli_report</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_REPORT_ERROR&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">MYSQLI_REPORT_STRICT</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;BY&nbsp;ID&nbsp;LIMIT&nbsp;3"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;numeric&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_NUM</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]);<br /><br /></span><span style="color: #FF8000">/*&nbsp;associative&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_ASSOC</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"Name"</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"CountryCode"</span><span style="color: #007700">]);<br /><br /></span><span style="color: #FF8000">/*&nbsp;associative&nbsp;and&nbsp;numeric&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_BOTH</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"CountryCode"</span><span style="color: #007700">]);</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>过程化风格</p></div>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />mysqli_report</span><span style="color: #007700">(</span><span style="color: #0000BB">MYSQLI_REPORT_ERROR&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">MYSQLI_REPORT_STRICT</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;by&nbsp;ID&nbsp;LIMIT&nbsp;3"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$query</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;numeric&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">MYSQLI_NUM</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]);<br /><br /></span><span style="color: #FF8000">/*&nbsp;associative&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">MYSQLI_ASSOC</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"Name"</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"CountryCode"</span><span style="color: #007700">]);<br /><br /></span><span style="color: #FF8000">/*&nbsp;associative&nbsp;and&nbsp;numeric&nbsp;array&nbsp;*/<br /></span><span style="color: #0000BB">$row&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">MYSQLI_BOTH</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">],&nbsp;</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">"CountryCode"</span><span style="color: #007700">]);</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程的输出类似于：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
Kabul (AFG)
Qandahar (AFG)
Herat (AFG)
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mysqli-result.fetch-array-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mysqli-result.fetch-assoc.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_assoc()</a> - Fetch the next row of a result set as an associative array</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-column.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_column()</a> - Fetch a single column from the next row of a result set</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-row.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_row()</a> - Fetch the next row of a result set as an enumerated array</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-object.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_object()</a> - Fetch the next row of a result set as an object</span></li>
    <li class="member"><span class="function"><a href="mysqli.query.html" class="function" rel="rdfs-seeAlso">mysqli_query()</a> - 对数据库执行一次查询</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.data-seek.html" class="function" rel="rdfs-seeAlso">mysqli_data_seek()</a> - Adjusts the result pointer to an arbitrary row in the result</span></li>
   </ul>
  </p>
 </div>


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